OGS touch screen and electronic equipment
By setting the descarriage film layer on the side of the touch unit of the OGS touch screen facing away from the first transparent insulating film layer, and its edge is flush with or inwardly contracted with the edge of the touch unit, the problem of irregular appearance of the edge of the OGS touch screen is solved, and the regularity and stability of the edges are achieved.
Patent Information
- Application Number
- CN202422101145.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-28
AI Technical Summary
During the edge processing process, OGS touch screen can easily lead to irregular appearance and defects such as edge colors and small white dots.
By setting the deflection film layer on the side facing away from the first transparent insulating film layer, and its edge is flush with or inwardly contracting the edge of the touch unit, the deflection film layer is prevented from falling off during subsequent process wiping.
It effectively avoids the descarriage layer falling off during edge processing, and maintains the appearance of the edges of the OGS touch screen in a regular manner.
Smart Images
Figure CN222994916U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of touch screens, and particularly to an OGS touch screen and an electronic device. Background Art
[0002] A touch screen is an input device for controlling an electronic device and can realize the human-computer interaction between a human and the electronic device. Among them, an OGS (One Glass Solution) touch screen is a technology for directly forming an ITO (Indium tin oxide) conductive film and a sensor on a protective glass; compared with a traditional touch screen, the OGS touch screen has the advantages of simple structure, light weight, good light transmittance, low production cost, etc.
[0003] The large-piece manufacturing process of the OGS touch screen is as follows: As Figure 1 shown, first, a first transparent insulating film layer 22 (for example, spraying a resin solution on the glass substrate 21) is covered on the large-piece glass substrate 21 to improve the strength of the glass substrate 21, and further improve the strength of the entire OGS touch screen; as Figure 2 shown, a touch unit 23 (including a transparent conductive film layer 231, a metal wire layer 232, a light-shielding film layer 233, a second transparent insulating film layer 234, etc.) is completed on the first transparent insulating film layer 22 through a yellow light process (such as coating, exposure, development, etching, etc.); then, as Figure 3 shown, a whole-surface anti-reflection film layer 24 is plated to make the etching marks invisible on the human-machine surface of the product; then, the gold fingers are etched to be exposed for signal transmission; finally, it is cut into multiple OGS touch screens.
[0004] Among them, heating is required during the process of forming the transparent conductive film layer 231 of the touch unit 23 on the first transparent insulating film layer 22, and the first transparent insulating film layer 22 is an organic substance, and gas will be precipitated when heated. Due to the blocking of the glass substrate 21 and the transparent conductive film layer 231, the gas can only precipitate from the edge of the first transparent insulating film layer 22 as shown by the arrow in Figure 2 and remains on the surface of the glass substrate 21, resulting in the pollution of the surface of the glass substrate 21; after the whole-surface anti-reflection film layer 24 is plated, as shown by the arrow in Figure 3 shown, the adhesion of the anti-reflection film layer 24 at this position is reduced and it is not resistant to wiping, and the anti-reflection film layer 24 at this position is likely to fall off during the subsequent wiping process, resulting in irregular edges and finally appearance defects such as edge color difference and small white dots. Utility Model Content
[0005] In view of this, an embodiment of the present application provides an OGS touch screen to solve the problem of irregular edge appearance.
[0006] A first aspect of the present application provides an OGS touch screen, which includes a glass substrate, a first transparent insulating film layer, a touch control unit, and a shadow elimination film layer. The first transparent insulating film layer is disposed on the glass substrate, the touch control unit is disposed on the first transparent insulating film layer, and the shadow elimination film layer is disposed on a side of the touch control unit facing away from the first transparent insulating film layer; wherein, an edge of the shadow elimination film layer is flush with an edge of the touch control unit, or the edge of the shadow elimination film layer shrinks inward compared with the edge of the touch control unit.
[0007] The beneficial effects of the OGS touch screen provided by the embodiments of the present application: Since the shadow elimination film layer is disposed on a side of the touch control unit facing away from the first transparent insulating film layer, and the edge of the shadow elimination film layer is flush with the edge of the touch control unit, or the edge of the shadow elimination film layer shrinks inward compared with the edge of the touch control unit, that is, in a direction parallel to the glass substrate, the shadow elimination film layer does not cover the sides of the first transparent insulating film layer and the touch control unit. Therefore, it avoids the peeling off of the shadow elimination film layer during the process of wiping the edge of the OGS touch screen in the subsequent process, making the edge appearance of the OGS touch screen more regular.
[0008] In some embodiments, the edge of the shadow elimination film layer shrinks inward by 0.5 - 1 mm compared with the edge of the touch control unit.
[0009] In order to simplify the coating process of the shadow elimination film layer, the shadow elimination film layer is usually coated in a full-surface coating manner. Therefore, in a direction parallel to the glass substrate, the shadow elimination film layer will cover the sides of the first transparent insulating film layer and the touch control unit. After that, an etching technique needs to be used to etch off the shadow elimination film layer covering the sides of the first transparent insulating film layer and the touch control unit. By shrinking the edge of the shadow elimination film layer inward by 0.5 - 1 mm compared with the edge of the touch control unit, it is possible to avoid the residual shadow elimination film layer on the sides of the first transparent insulating film layer and the touch control unit.
[0010] In some embodiments, the first transparent insulating film layer is covered on the surface of the glass substrate by printing or coating.
[0011] In some embodiments, the first transparent insulating film layer is an OC film layer.
[0012] The OC film layer is a cured protective film made of a resin material, which has good light transmittance and the material is easy to obtain. While playing a role in strengthening the glass substrate, it does not affect the display effect of the OGS touch screen.
[0013] In some embodiments, the touch control unit includes a transparent conductive film layer, a metal wire layer, a light-shielding film layer, and a second transparent insulating film layer. The light-shielding film layer is located at an outer peripheral edge of the first transparent insulating film layer, and the second transparent insulating film layer is an OC film layer.
[0014] Since the material of the second transparent insulating film layer is the same as that of the first transparent insulating film layer, after forming the first transparent insulating film layer, the second transparent insulating film layer can be formed without changing the material.
[0015] In some embodiments, the transparent conductive film layer is an ITO film layer.
[0016] The ITO film layer has good electrical conductivity, which can reduce resistance loss; it has high transparency, which is beneficial to the penetration of light and improves the display effect; it has high heat resistance and can withstand high-temperature environments, which is beneficial to the stability and reliability of the device.
[0017] In some embodiments, the metal wire layer is a silver wire layer or a copper wire layer.
[0018] The silver wire layer and the copper wire layer have good electrical conductivity, which is beneficial to controlling the transmission of signals.
[0019] In some embodiments, the anti-glare film layer is a SiONx film layer.
[0020] Utilizing the adjustable characteristics of the SiONx film layer, by adopting a certain ratio of oxygen and nitrogen and controlling it at a certain thickness, for example, 20 - 100 nm, top anti-glare treatment is performed on existing products, achieving a good anti-glare effect; at the same time, the SiONx film layer has a high breakdown electric field and can provide electrostatic protection for the transparent conductive film layer and the metal wire layer.
[0021] In some embodiments, the glass substrate is tempered glass.
[0022] On the basis of strengthening the glass substrate through the first transparent insulating film layer, the glass substrate is designed as tempered glass to further improve the strength of the glass substrate and increase the service life of the OGS touch screen.
[0023] The second aspect of the present application proposes an electronic device, which includes the OGS touch screen as described in the first aspect.
[0024] This electronic device adopts any one or more embodiments of the above OGS touch screen, and thus has the beneficial effects of the above embodiments, which will not be elaborated here one by one.
[0025] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are given below. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments or the description of conventional technologies. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0027] Figure 1 is a schematic structural diagram of a first transparent insulating film layer covering a glass substrate in the prior art;
[0028] Figure 2 is in Figure 1 a schematic structural diagram after manufacturing a touch control unit on the first transparent insulating film layer in;
[0029] Figure 3 is in Figure 2 a schematic structural diagram of a whole-surface anti-glare film layer plated on the touch control unit in;
[0030] Figure 4 is a schematic structural diagram of an OGS touch screen provided by some embodiments of the present application;
[0031] Figure 5 is a schematic structural diagram of an OGS touch screen provided by other embodiments of the present application;
[0032] Figure 6 is a schematic structural diagram of an electronic device provided by some embodiments of the present application.
[0033] The meanings of the marks in the figure are:
[0034] 100, electronic device;
[0035] 10, OGS touch screen;
[0036] 11, glass substrate;
[0037] 12, first transparent insulating film layer;
[0038] 13, touch control unit; 131, transparent conductive film layer; 132, metal wire layer; 133, light-shielding film layer; 134, second transparent insulating film layer;
[0039] 14, anti-glare film layer;
[0040] 21, glass substrate;
[0041] 22, first transparent insulating film layer;
[0042] 23, touch control unit; 231, transparent conductive film layer; 232, metal wire layer; 233, light-shielding film layer; 234, second transparent insulating film layer;
[0043] 24. Shadow elimination film layer. Detailed implementation manners
[0044] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and thus are only examples and cannot be used to limit the protection scope of the present application.
[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.
[0046] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.
[0047] Referring to "embodiments" herein means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0048] In the description of the embodiments of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.
[0049] In the description of the embodiments of this application, the term "a plurality" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).
[0050] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present application.
[0051] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.
[0052] An embodiment of the first aspect of the present application provides an OGS touch screen, which can be applied to LCD displays and LED displays. Please refer to Figure 4 and Figure 6 , the OGS touch screen 10 includes a glass substrate 11, a first transparent insulating film layer 12, a touch unit 13, and a light extinction film layer 14. The first transparent insulating film layer 12 is disposed on the glass substrate 11, the touch unit 13 is disposed on the first transparent insulating film layer 12, and the light extinction film layer 14 is disposed on the side of the touch unit 13 facing away from the first transparent insulating film layer 12; wherein, the edge of the light extinction film layer 14 is flush with the edge of the touch unit 13, or the edge of the light extinction film layer 14 shrinks inward compared to the edge of the touch unit 13.
[0053] When manufacturing the OGS touch screen 10, the glass substrate 11 is used as the base layer, and then the structures of other layers are sequentially arranged.
[0054] Among them, the glass substrate 11 has good light transmittance and certain toughness as a whole, and will not have cracks under pressure, and the Mohs hardness is at least 6 or above; the glass substrate 11 simultaneously plays a dual role of protecting the glass and the touch sensor. Optionally, the thickness of the glass substrate 11 is 0.5-2 mm.
[0055] Among them, the shape of the glass substrate 11 can be designed according to the shape of the electronic device 100. For example, the glass substrate 11 can be rectangular, circular, elliptical, etc.
[0056] The first transparent insulating film layer 12 is disposed on the glass substrate 11, which plays a role in strengthening the glass substrate 11, can effectively improve the drop resistance of the glass substrate 11, making the OGS touch screen 10 not easily broken when dropped, and thus improving the service life of the OGS touch screen 10.
[0057] Among them, the shape of the first transparent insulating film layer 12 matches the shape of the glass substrate 11. For example, when the glass substrate 11 is rectangular, correspondingly, the first transparent insulating film layer 12 is rectangular; when the glass substrate 11 is circular, correspondingly, the first transparent insulating film layer 12 is circular; when the glass substrate 11 is oval, correspondingly, the first transparent insulating film layer 12 is oval.
[0058] It can be understood that the first transparent insulating film layer 12 is covered on the surface of the glass substrate 11 by printing or coating.
[0059] In this embodiment, the structure of the touch control unit 13 is not specifically limited, and the touch control unit 13 can adopt a conventional structure well known to those skilled in the art.
[0060] The anti-reflection film layer 14 is disposed on the side of the touch control unit 13 facing away from the first transparent insulating film layer 12, that is, the anti-reflection film layer 14 is at the top layer of the OGS touch screen 10. It can be understood that, as Figure 4 shown, the edge of the anti-reflection film layer 14 shrinks inward compared to the edge of the touch control unit 13; or, as Figure 5 shown, the edge of the anti-reflection film layer 14 is flush with the edge of the touch control unit 13.
[0061] Among them, the anti-reflection film layer 14 uses optical matching to make the etching marks invisible on the human-machine surface after the OGS product is adhered, achieving an anti-reflection effect. Optionally, the anti-reflection film layer 14 is obtained by vacuum coating technology.
[0062] It should be noted that there are etching marks only in the touch control area of the touch control unit 13, and the anti-reflection effect is in the touch control area. The anti-reflection film layer 14 covering the side of the touch control unit 13 has no anti-reflection effect. Therefore, this part of the anti-reflection film layer 14 can be removed without affecting the performance of the product.
[0063] The beneficial effects of the OGS touch screen 10 provided by the embodiment of the present application: Since the anti-reflection film layer 14 is disposed on the side of the touch control unit 13 facing away from the first transparent insulating film layer 12, and the edge of the anti-reflection film layer 14 is flush with the edge of the touch control unit 13, or the edge of the anti-reflection film layer 14 shrinks inward compared to the edge of the touch control unit 13, that is, in the direction parallel to the glass substrate 11, the anti-reflection film layer 14 does not cover the sides of the first transparent insulating film layer 12 and the touch control unit 13. Therefore, the shedding of the anti-reflection film layer 14 caused during the process of wiping the edge of the OGS touch screen 10 in the subsequent process is avoided, making the edge appearance of the OGS touch screen 10 more regular.
[0064] Please refer to Figure 4 , in some embodiments, the inward shrinkage value L of the edge of the light-shielding film layer 14 compared to the edge of the touch unit 13 is 0.5-1 mm.
[0065] To simplify the coating process of the light-shielding film layer 14, the light-shielding film layer 14 is usually coated in a full-surface coating manner. Therefore, in the direction parallel to the glass substrate 11, the light-shielding film layer 14 covers the side portions of the first transparent insulating film layer 12 and the touch unit 13, as Figure 3 shown. After that, an etching technique needs to be used to etch away the light-shielding film layer 14 covering the side portions of the first transparent insulating film layer 12 and the touch unit 13. By setting the inward shrinkage value L of the edge of the light-shielding film layer 14 compared to the edge of the touch unit 13 to be 0.5-1 mm, it is possible to avoid the residue of the light-shielding film layer 14 on the side portions of the first transparent insulating film layer 12 and the touch unit 13. Optionally, the light-shielding film layer 14 covering the side portions of the first transparent insulating film layer 12 and the touch unit 13 can be etched away synchronously when etching the gold fingers, without increasing the process flow.
[0066] Of course, it is also possible to avoid full-surface coating by masking, that is, only coating the light-shielding film layer 14 in the touch area of the touch unit 13. Since the light-shielding film layer 14 does not cover the side portions of the first transparent insulating film layer 12 and the touch unit 13, the step of etching away the light-shielding film layer 14 covering the side portions of the first transparent insulating film layer 12 and the touch unit 13 is omitted.
[0067] In other embodiments, the inward shrinkage value L of the edge of the light-shielding film layer 14 compared to the edge of the touch unit 13 can be 0-0.5 mm or 1-1.5 mm.
[0068] In some embodiments, the first transparent insulating film layer 12 is an OC film layer.
[0069] The OC film layer is a cured protective film made of a resin material, which has good light transmittance and the material is easily obtainable. While strengthening the glass substrate 11, it does not affect the display effect of the OGS touch screen 10. It can be understood that the OC film layer can be formed by coating or printing on the glass substrate 11.
[0070] In other embodiments, the first transparent insulating film layer 12 can be a PI film layer with better light transmittance. It can be understood that the PI film layer can be formed by coating or printing on the glass substrate 11.
[0071] Please refer to Figure 4, in some embodiments, the touch unit 13 includes a transparent conductive film layer 131, a metal wire layer 132, a light-shielding film layer 133, and a second transparent insulating film layer 134. The light-shielding film layer 133 is located at the outer peripheral edge of the first transparent insulating film layer 12, and the second transparent insulating film layer 134 is an OC film layer.
[0072] Optionally, the transparent conductive film layer 131 can be formed by means of vacuum magnetron sputtering.
[0073] Optionally, the transparent conductive film layer 131 can be an ITO film layer. The ITO film layer has good electrical conductivity, which can reduce resistance loss; it has high transparency, which is beneficial to the penetration of light and improves the display effect; it has high heat resistance and can withstand high-temperature environments, which is beneficial to the stability and reliability of the device. Of course, the transparent conductive film layer 131 can also be a SiO2 film layer.
[0074] The above-mentioned shadow elimination film layer 14 mainly plays a role in eliminating the shadow of the transparent conductive film layer 131, avoiding the etching marks on the transparent conductive film layer 131 being observed by the human eye.
[0075] Optionally, the metal wire layer 132 can be a silver wire layer, for example, conductive silver paste; or, the metal wire layer 132 can be a copper wire layer, for example, conductive copper paste; the silver wire layer and the copper wire layer have good electrical conductivity, which is beneficial to controlling the transmission of signals. Of course, the metal wire layer 132 can also be a molybdenum wire layer, an aluminum wire layer, etc.
[0076] Optionally, the light-shielding film layer 133 is an ink layer, for example, a black ink layer (BM), and the light-shielding film layer 133 is formed by screen-printing black ink.
[0077] The light-shielding film layer 133 is located at the outer peripheral edge of the first transparent insulating film layer 12, forming the border of the OGS touch screen 10. The black border formed by the black ink layer plays a role in preventing light leakage from the screen. Moreover, the light-shielding film layer 133 and the metal wire layer 132 are arranged corresponding to each other, avoiding the metal wire layer 132 being seen by the naked eye. Among them, the inside of the black border is the visible area, and the above-mentioned touch area corresponds to the visible area; the position where the black border is located and the outside of the black border are non-visible areas, and the shadow elimination film layer 14 is not provided in the non-visible areas, which will not affect the performance of the OGS touch screen 10.
[0078] Among them, the material of the second transparent insulating film layer 134 is the same as that of the first transparent insulating film layer 12, both are OC film layers. In this way, after the first transparent insulating film layer 12 is formed, the second transparent insulating film layer 134 can be formed without changing the material.
[0079] It should be noted that the first transparent insulating film layer 12 mainly plays an insulating role and strengthens the glass substrate 11, and the second transparent insulating film layer 134 mainly plays an insulating role.
[0080] In other embodiments, both the first transparent insulating film layer 12 and the second transparent insulating film layer 134 may be PI film layers; alternatively, the material of the second transparent insulating film layer 134 may be different from that of the first transparent insulating film layer 12. For example, one of the second transparent insulating film layer 134 and the first transparent insulating film layer 12 is an OC film layer, and the other of the second transparent insulating film layer 134 and the first transparent insulating film layer 12 is a PI film layer.
[0081] In some embodiments, the anti-glare film layer 14 is a SiONx film layer.
[0082] It can be understood that x can be 1, 2, 3..., that is, the anti-glare film layer 14 can be SiON, SiON2, SiON3...
[0083] Utilizing the adjustable characteristics of the SiONx film layer, with a certain ratio of oxygen and nitrogen, and controlling it at a certain thickness, for example, 20 - 100 nm, top-layer anti-glare treatment is performed on existing products, achieving a good anti-glare effect; at the same time, the SiONx film layer has a high breakdown electric field, which can provide electrostatic protection for the transparent conductive film layer 131 and the metal wire layer 132.
[0084] Optionally, the preparation method of the SiONx film layer is as follows: Using magnetron sputtering technology, in a vacuum environment, argon is used as the ion source to bombard the silicon target to sputter out silicon target particles, and at the same time, a certain mixing ratio of oxygen and nitrogen is introduced. The refractive index can be adjusted by controlling the mixing ratio of oxygen and nitrogen, thereby forming a stable SiONx film layer.
[0085] Of course, in other embodiments, the anti-glare film layer 14 can also be made of materials such as silicon oxide and silicon nitride.
[0086] In some embodiments, the glass substrate 11 is tempered glass.
[0087] Tempered glass is a glass product with enhanced impact resistance through physical or chemical means, including fully tempered glass and heat-strengthened glass. Among them, the physical method includes rapid cooling after heating to form prestress, and the chemical method is to put ordinary glass into a high-temperature cesium or potassium salt solution, and replace sodium ions with cesium ions or potassium ions to form prestress. Fully tempered glass is a special case of tempered glass, which is characterized by having compressive stress on the surface, high mechanical strength, good elasticity and thermal stability.
[0088] In other embodiments, since the first transparent insulating film layer 12 has been provided on the glass substrate 11 in this application to increase the strength of the glass substrate 11, therefore, the glass substrate 11 can also be unstrengthened ordinary glass.
[0089] Please refer to Figure 6, a second aspect of the present application proposes an electronic device 100. The electronic device 100 includes the OGS touch screen 10 as described in the first aspect. Among them, the electronic device 100 can be a laptop computer, a tablet computer, a mobile phone, a smart watch, a processing device, a medical device, etc.
[0090] The electronic device 100 adopts any one or more embodiments of the above OGS touch screen 10, and thus has the beneficial effects of the above embodiments, which will not be elaborated here one by one.
[0091] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.
Claims
1. An OGS touch screen, characterized in that: The invention comprises a glass substrate, a first transparent insulating film layer, a touch control unit and an image elimination film layer, wherein the first transparent insulating film layer is arranged on the glass substrate, the touch control unit is arranged on the first transparent insulating film layer, and the image elimination film layer is arranged on the side of the touch control unit facing away from the first transparent insulating film layer; wherein the edge of the image elimination film layer is flush with the edge of the touch control unit, or the edge of the image elimination film layer is contracted inwardly compared with the edge of the touch control unit.
2. The OGS touch screen according to claim 1, characterized in that: The edge of the shadow elimination film layer shrinks inward by 0.5-1 mm compared to the edge of the touch control unit.
3. The OGS touch screen according to claim 1, wherein: The first transparent insulating film layer is covered on the surface of the glass substrate by printing or coating.
4. The OGS touch screen according to claim 1, wherein: The first transparent insulating film layer is an OC film layer.
5. The OGS touch screen according to claim 4, characterized in that: The touch control unit includes a transparent conductive film layer, a metal wire layer, a light shielding film layer, and a second transparent insulating film layer. The light shielding film layer is located at the outer peripheral edge of the first transparent insulating film layer, and the second transparent insulating film layer is an OC film layer.
6. The OGS touch screen according to claim 5, characterized in that: The transparent conductive film layer is an ITO film layer.
7. The OGS touch screen according to claim 5, characterized in that: The metal wire layer is a silver wire layer or a copper wire layer.
8. The OGS touch screen according to any one of claims 1 to 7, characterized in that: The image elimination film layer is a SiONx film layer.
9. The OGS touch screen according to any one of claims 1 to 7, characterized in that: The glass substrate is tempered glass.
10. An electronic device, characterized in that: It comprises the OGS touch screen as described in any one of claims 1 to 9.